Non-revenue water is water lost after it leaves the distribution facility and before it reaches the consumer. This lost water brings in no revenue, although it still costs money to collect and process. In many cases, this water loss is due to leaky pipes, although it may also be stolen through illegal connections or simply be unaccounted for through meter inaccuracies.
- A radar sensor acquires images.
- An algorithm prepares raw data for analysis, a process that includes the removal of noises caused by vegetation, high buildings, and metal objects.
- A sieve with the known spectral signature of treated water is used to extrapolate only the treated water leaks.
- Normalized data is presented graphically with findings displayed on a GIS web-based application. Field teams on the ground receive “leak sheets” generated by the system to confirm and repair the leaks.